diff --git a/static/js/pandora/upload.js b/static/js/pandora/upload.js
index 58ca3e817..b9a5ed3ba 100644
--- a/static/js/pandora/upload.js
+++ b/static/js/pandora/upload.js
@@ -7,7 +7,7 @@ pandora.ui.upload = function(oshash, file) {
         chunkUrl,
         format = pandora.site.video.formats[0],
         maxRetry = -1,
-        resolution = Math.max(pandora.site.video.resolutions),
+        resolution = Ox.max(pandora.site.video.resolutions),
         retries = 0,
         that = Ox.Element(),
         uploadData = {},